Envelop.



No. s5|,s92. Patented June 12, I900.

v c. F. BELKNAP.

ENVELOP.

(Application filed Mar. 10, 1900.) v (No Model.) 2 Sheets-Sheet I.

c/M/JL Cu.

Patented lune l2, I900. C. F. BELKNAP.

E N v E L 0 P. (Application filed Mar. 10, 1900.)

' I (No Model.)

2 Sheets-Sheet 2.

NIT ED -STATESL ATEN, FFICE- CHARLES F. BE KNAP, OF P ILADE PHIA, PENNSYLVANIA.

"EPlVELOP.

SPEGIFIOA'IIONfomiihg part or men Patent No. 651,692 dated June 12, 1906.

Application tiled nmh' o, 1900. Serial No. 8,154. on model) 'To rrZlwhom it may concern.

Be it known that I, CHARLES F. BELKNAP, a citizen of the United States, residingin Philadelphia, Pennsylvania, have inventedcertain Improvements in Envelops, of which the following is a specification.

My invent-ionconsists-of an envelop having two rows of perforations, with intervening severi-ng band or strip form ed by folding the material of which the envelop is composed,whereby said band or strip can be readily torn away in order to open the envelop;

In the accompanying drawings, Figure 1 is a rear view of an envelop having a severing band orstrip formed in accordance with my invention. Fig. 2 is a view showing the shape of the envelop-flap before the fold has been formed therein. Fig. 3 is a view similar to .Fig. 1, but illustrating another embodiment of my invention. Fig. 4 is a view similar to Fig. 2, but illustrating before folding the shape of the flap for producing the severingband shown in Fig. 3. Fig. 5 is an exaggerated section on the line a a, Fig. 1. Fig. 6

is a similar viewshowing the severing-band;

raised prior to being torn away; and Fig. 7

is an exaggerated sectional view on the line these two rows ,of perforations, the result being a severing-strip 4, composed of two thicknesses of the material of which theenvelop is made and two rows of perforations closely adjacent to the base of this strip. The strip can be folded down upon the flap of the envelop, as shown in Fig. 5, so as not to interfere with the ready handlingof the envelop, and when the envelop is to be opened the strip can be raised, as shown in Fig. 6, and by a sharp pull upon itcan be torn loose from the flap of the envelop, the latter tearing along the lines of perforations 1 1. 7' a If desired, the two thicknesses of the folded stripis'pasted down upon thefiap of the envelop,and' the rows of' perforations 1' are formed in the flap'along the, opposite edges of the pasted strip, the'ends of the latter projecting beyond the edges of the flap, so

that either of them can be' conveniently grasped in order totear the strip loose from the flap. Only one end may thus project, if

"desired.

1 Instead of forming r we of perforations in the material of the enve op in order to weaken the same and insure tearing along certain line's l may adopt-other means for accomplishing this purposesuch, for in tance, as

scoring or indenting the material--and such equivalent-means are-intended to be included in the term rows of perforations as herein 'used.

While I prefer in all cases to form the severing-strip on the flap of the envelop, the same may in some cases beformed'on the front-or face of the envelop without departing from the main feature of my invention.

Having thus described my invention, I

claim and desire to secure by, Letters Patcut-*- 1. Anenvelop having two rows of perforations both formed in the same portion of the envelop-and extending across said portion, the intervening material beingfolded so 'as' to form a projecting severing strip or band,

substantially as specified.

2. An envelop having two rows of perforationsboth formed in the same portion of the envelop and extending across said portion,

the intervening material being so folded as to form a projecting severing strip or band with the rows of perforations closely adjacent to, but on opposite sides of, the base of said band, substantially as specified.

3; An envelon having a flap with two rows of perforations and an'intervening severing In testimony whereof I have signed my strip or band formed by foldingthe material name to this specification in the presence of between said rows of perforations, said strip -two subscribing witnesses. or band being folded against and secured to CHAS. F. BELKNAP.

5 the flap, and either or both of its ends pro- Witnesses: v

jeeting beyond'the edge of the flap, substan- F. E. BEOHTOLD, tially as specified. J as. H. KLEIN. 

